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Table 5 Detection of H9N2 influenza viruses in nasal washesa

From: Avian influenza virus H9N2 infections in farmed minks

  Days post-infection
3 5 7 9 11 13 15
Control group C1 None None None None None / /
C2 None None None None None None None
Infection group I1 + / / / / / /
I2 + / / / / / /
I3 + + + / / / /
I4 + + + / / / /
I5 + + + + + / /
I6 + + + None None None None
  1. a “+” indicates positive. “None” indicates negative. “/” indicates it has not be tested, because this mink has been euthanized before